The fans of the CTD - NFD - NFE series are centrifugal fans with backward curved blades at high pressure both simple and double inlet specially designed for conveying clean or slightly dusty air with flow rates up to 350,000 m3/h and a pressure up to 20.000 Pa . These fans find their main application as fans for combustion air, for pneumatic transport, air curtains, liquid agitators and cooling or glass tempering. What distinguishes the CTD series is the possibility to mount 2 different types of impeller, standard or self-cleaning depending on the amount of powder present in the fluid on one spiral reaching the highest levels of standardization and functionality in this way. One of the main features of these series is the robust construction with strong electro performed appropriately reinforced metal sheets that ensure minimum noise and the absence of vibrations and pulsations.
The fans of the CTD series - NFD - NFE are built in 21 sizes with impellers from 315 mm to 2500 mm in diameter, the size 1600 onwards, the fans are supplied with case divided into two or more parts to be able to effect the transport. The impellers are statically and dynamically balanced with electronic equipment in compliance with ISO N.1940 Class G = 2.5.